In the case of polymerase chain reaction $(PCR)$,what are the temperatures required for the following steps?
$A.$ Denaturation
$B.$ Annealing
$C.$ Extension

The transfer of protein from electrophoretic gel to nitrocellulose membrane is known as

Which of the following statements are correct with respect to $DNA$ separation, isolation and visualization?
$A$. The cutting of $DNA$ is done by molecular scissors.
$B$. The $DNA$ fragments separate according to their size in an agarose gel, upon electrophoresis.
$C$. The separated $DNA$ fragments can be seen without staining when exposed to $UV$ light.
$D$. The separated $DNA$ fragments, when stained with ethidium bromide, can be seen in visible light.
Choose the correct answer from the options given below:

Which enzyme is responsible for the replication of recombinant $DNA$ in the host?

In gel electrophoresis,separated $DNA$ fragments can be visualized with the help of:

Separation and purification by filtration,centrifugation of the desired compound produced in a bioreactor is a part of: